Article
Materials Science, Multidisciplinary
Tianyu Liu, Qiangang Fu, Bing Liu, Jiaping Zhang
Summary: A new ablation condition was designed to investigate the effect of temperature gradient on the ablation and flexural behavior of C/C-ZrC composites. The volume change caused by ZrC -> ZrO2 and the ZrO2 crystalline transformation were beneficial for releasing internal stress, thereby contributing to the higher flexural strength retention of the composites.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Ceramics
Jing Xu, Lingjun Guo, Jingan Kong, Yuan Ma, Hanhui Wang, Jiancheng Wang
Summary: The bending property of C/C-ZrC-SiC, C/C-SiC, and C/C composites after ablation was studied, and it was found that C/C-ZrC-SiC composites exhibited better laser ablation resistance and higher bending strength retention compared to the other two. The excellent ablation resistance and residual bending strength of C/C-ZrC-SiC composites were attributed to the lowest ablative temperature and the effective protection of ZrO2 grain and ZrO2-SiO2 layer. However, the ablation damage induced a fracture behavior transformation in the composites.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Tianyu Liu, Qiangang Fu, Jiaping Zhang
Summary: The C/C-ZrC composites were prepared using ICVI and RMI methods. Ablation behavior of the composites was studied under oxyacetylene flame. The results showed that with increased ablation time, the ablation rates increased initially and then stabilized, while the flexural strength and modulus of the composites significantly increased after 15 seconds of ablation.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Yong Gao, Bai-Lin Zha, Jin-Jin Wang, Zhen-Sheng Sun, Zhao-Fu Zhang, Yi-Ang Shi
Summary: In this study, C/C-SiC and C/C-SiC-ZrC composites were prepared and their ablation resistance under hypersonic oxygen-rich environmental conditions was investigated. The results showed that C/C-SiC composites exhibited excellent ablation resistance at relatively low temperature and speed, while the high-temperature ablation resistance of ZrC-modified C/C-SiC-ZrC composites significantly improved.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Lei Zhong, Lingjun Guo, Yunyu Li, Chuanyun Wang
Summary: To reduce cost and preparation time, uneven-density C/C composites are designed and prepared using thermal gradient CVI process, followed by local modification of ZrC-SiC composite ceramics to enhance anti-ablation performance. Ablation tests demonstrate that the microstructure of ZrO2 grains can be influenced by adjusting ablation temperature and ZrO2 grains' melting point. Optimum performance is achieved with approximately 20 wt% SiC content in the ZrC-SiC composite ceramics and improves the uneven C/C composites prepared. Additionally, the dense C/C matrix prevents liquid ZrO2-SiO2 phase runoff and allows for protection of carbon fibers and the dense C/C matrix beneath.
MATERIALS CHARACTERIZATION
(2023)
Article
Materials Science, Multidisciplinary
Shike Huang, Fei Sun, Wenqing Ruan, Shuai Ren, Zhenxuan Zhang, Xiong Liang, Jiang Ma
Summary: In this study, a composite material with continuous regulation of thermal expansion was obtained by combining metallic glass with beta-LiAlSiO4 possessing negative thermal expansion. The composite material exhibited near-zero thermal expansion properties over a certain temperature range.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Metallurgy & Metallurgical Engineering
Meng-meng Shao, Zhao-ke Chen, Xin-shuang Wang, Qing-bo Wen, Xiang Xiong
Summary: To enhance the anti-ablation property of C/C composites, ZrC-SiC-MoSi2 coatings with different Zr contents were prepared on C/C-SiC-ZrC ceramic matrix composites. The ablation behavior of the coated composites was studied in an oxyacetylene torch environment with varying oxygen and acetylene fluxes. The results showed that the particle sizes of ZrC and SiC in the coatings decreased and distributed more homogeneously with the increase of Zr content. The ablation mechanisms of the coatings changed from oxidation to oxidation plus evaporation and then to the combination of oxidation, evaporation, and denudation with the increase of oxygen and acetylene fluxes.
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA
(2023)
Article
Materials Science, Multidisciplinary
Yunyu Li, Yichen Liu, Chen Guo, Yibin Chen, Junhao Liang, Jian Zhang, Jiaping Zhang, Lingjun Guo
Summary: The realization of functionalized coating design is an effective means to enhance the ablation resistance. A multi-layer structure coating based on ZrC composite was successfully developed and applied on the surface of SiC coated C/C composites. The coating demonstrated excellent ablation resistance for 240 s under harsh ablation environments with temperatures exceeding 2200 degrees C.
Article
Materials Science, Ceramics
Yuanqi Weng, Xin Yang, Feixiong Chen, Cunqian Fang, Xiaxiang Zhang, Anhong Shi, Qizhong Huang
Summary: A rapid method combining precursor infiltration and pyrolysis with pressure assisted reactive melt infiltration was developed to fabricate C/C-ZrC-SiC-CuxSiy composites with low open porosity. The dominant phases of ZrC and SiC with scattered CuxSiy inclusions were present in the continuous infiltrated matrix. In ablation test, the heat absorbing effect of CuxSiy-phase and formation of protective ZrO2-SiO2 cover enhanced the ablative property of composites for short-time ablation, while the massive consumption of Si-phase damaged the surface oxide cover integrity.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Sue Ren, Kai Liu, Kai Wang, Jinpeng Fan, Jun Liang, Cheng Yang
Summary: The ZrC/C aerogel was successfully prepared using ZrOC and PF as sols, HMTA as cross-linker, displaying low bulk density, relatively low thermal conductivity, and high compressive strength. XRD, SEM, and XPS analyses characterized the morphology and microstructure of the aerogels, revealing phase transformation of ZrO2 into ZrC at high temperatures.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Multidisciplinary
Zhigang Zhao, Kezhi Li, Gang Kou, Wei Li
Summary: The cyclic and single ablation behaviors of C/C-ZrC-SiC and C/C-ZrC composites prepared by reactive melt infiltration were studied. It was found that the C/C-ZrC-SiC composites showed better ablation resistance under cyclic ablation mode compared to C/C-ZrC composites. The formation of an effective heat/oxygen protection layer on the ablated surface contributed to the desirable ablation resistance of C/C-ZrC-SiC composites during single ablation.
Article
Materials Science, Ceramics
Xinfa Tian, Xiaohong Shi, Li Yang, Hejun Li, Hongjiao Lin
Summary: The modified precursor infiltration pyrolysis (PIP) method was used to prepare an integrated doped ceramic matrix and coating with SiC nanowires, resulting in a composite with improved bonding strength and ablation resistance. The integration of the coating and matrix enabled the formation of a continuous oxide layer in the ablation process, effectively blocking oxygen and heat. This systematic improvement led to significantly lower mass and linear ablation rates compared to traditional composites.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Yan Jia, Yong Li, Haifeng Cheng, Si'an Chen
Summary: In this study, the matrices of C/C-ZrC composites were modified by slurry infiltration to improve their density and properties. Different slurry powders were used to densify the composites. The density of the composites increased, while the porosity decreased after infiltration. The ablation and mechanical properties of the composites improved significantly by matrix modification.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Zhigang Zhao, Kezhi Li, Gang Kou, Wei Li
Summary: The cyclic and single ablation behavior of C/C-ZrC-SiC and C/C-ZrC composites, prepared by reactive melt infiltration, were investigated. It was found that the increased cyclic ablation numbers aggravated the oxidation of the matrix and the peeling content of oxides. Under the cyclic ablation mode, C/C-ZrC-SiC composites exhibited better resistance to mass loss compared to C/C-ZrC composites. Moreover, at a single ablation duration of 240 s, C/C-ZrC-SiC composites demonstrated desirable ablation resistance due to the formation of an effective heat/oxygen protection layer.
Article
Materials Science, Ceramics
Wei Xie, Qiangang Fu, Chunyu Cheng, Ningning Yan
Summary: The study found that La2O3-doped SiC ceramic exhibits better anti-oxidation performance at high temperatures, but excessive La2O3 content can lead to a decrease in anti-oxidation performance.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Jinguo Huang, Lingjun Guo, Kaijiao Li, Ningning Yan, Lei Zhou, Yunyu Li
Summary: Al2O3-modified SiC (AOSC) and Al-modified SiC (ASC) coatings prepared on carbon/carbon (C/C) composites via one-time pack cementation (PC) exhibit different microstructures and anti-oxidation performances. ASC coating provides better oxidation resistance and thermal shock resistance to C/C composites compared to AOSC coating. The addition of Al can enhance the sinterability of SiC, leading to the observed differences in performance. Additionally, thermodynamic analysis suggests that the Al2O3 oxidation product is more stable than the SiO2 (l) of oxidized SiC at 1500 degrees C.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Chunyu Cheng, Wei Xie, Hejun Li, Qiangang Fu
Summary: Among transition metal oxides, Nb2O5 and Ta2O5 reduce the evaporation of SiO2, while TiO2, ZrO2, and HfO2 help decrease the evaporation of SiO2 glass. The SiO2-HfO2 sample has the least evaporation.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Wei Xie, Qiangang Fu, Chunyu Cheng, Pei Zhang, Ningning Yan
Summary: The introduction of medium-entropy oxide (Y1/3Yb1/ 3Lu1/3)2O3 into SiC ceramic improves its oxidation resistance, reduces the initial oxidation rate, and enhances the stability of the SiO2 structure.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Materials Science, Ceramics
Pei Zhang, Chunyu Cheng, Bing Liu, Wei Xie, Xiaofei Zhu, Jiaping Zhang, Qiangang Fu
Summary: In this study, a novel high-entropy ceramic modified coating was deposited on C/C composites to enhance their oxidation resistance. The coating showed good adhesion to the substrate and significantly prolonged the oxidation protection time of C/C materials. Therefore, this coating has potential applications in improving the stability of C/C composites in high-temperature environments.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Wei Xie, Qiangang Fu, Chunyu Cheng, Peipei Wang, Jie Li, Ningning Yan
Summary: The Lu2O3-SiC-ZrB2 composite coating exhibited excellent oxidation resistance at 1500 degrees C, with Lu2O3 improving the coating's densification. Both experimental and first-principles simulations showed that the diffusion of Zr and Lu atoms into the SiO2 network enhanced the stability of the structure, leading to the good oxidation resistance of the composite coating.
Article
Materials Science, Multidisciplinary
Xiaofei Zhu, Yulei Zhang, Jian Zhang, Tao Li, Wei Xie, Pei Zhang, Honggang Li
Summary: By introducing micro-pores and compressive stress, the compound glass coating can effectively prevent the oxidation reaction of C/C composites in high-temperature environments, thus improving the stability and lifespan of the materials.
Article
Materials Science, Ceramics
Yuyu Zhang, Jia Sun, Lingxiang Guo, Kaifei Fan, Ralf Riedel, Qiangang Fu
Summary: In order to enhance the ablation resistance of ZrC coating on SiC-coated carbon/carbon composites above 2000 degrees C, SiC/TiC nanocomposites were incorporated into the ZrC coating via supersonic atmospheric plasma spraying (SAPS), resulting in the formation of ZrC-SiC/TiC-NCs coating. The good ablation resistance of the coating is mainly attributed to the distinctive capsule-like multi-crystalline microstructure of SiC/TiC-NCs, which helps in the formation of a high viscosity and low evaporation pressure Zr-Ti-Si-O glass during ablation.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Nanoscience & Nanotechnology
Chen Wang, Qiangang Fu, Wei Xie, Yufei Ma
Summary: By adjusting the joining temperature, the composition and distribution of phases in C/C-Mo joints were optimized to achieve maximum strength, leading to improved joint strength. The gradual phase transition in the different regions introduced more Ni-ss, reducing residual thermal stress and enhancing joint strength.
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
(2021)
Article
Materials Science, Coatings & Films
Pei Zhang, Qiangang Fu, Bing Liu, Chunyu Cheng, Wei Xie, Weiyan Wang, Dou Hu, Jiaping Zhang
Summary: SiC-ZrC-based composite coatings on carbon/carbon composites were prepared by pyrolysis of ZrC polymer precursor and gaseous reactive infiltration. The use of ZrSi2 for infiltration increased the UHTC content in the coatings and enhanced their ablation resistance.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Materials Science, Ceramics
Wei Xie, Qiangang Fu, Chunyu Cheng, Jie Li, Hanhui Wang, Kun Li
Summary: The oxidation behavior and microstructure evolution of Lu2O3-SiC-HfB2 ceramic coating at 1700 degrees C were investigated. The ternary coating showed good antioxidant property and improved thermal stability, prolonging the oxidation protection time.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Ningning Yan, Jiaping Zhang, Tianyu Liu, Wei Xie, Qiangang Fu, Jia Sun, Qingliang Shen
Summary: A ZrC-SiC-Si coating prepared by one-step vapor silicon infiltration was applied to improve the ablation resistance of nose-shaped ZrC/C composites. The coating exhibited good bonding strength, high hardness, and elastic modulus. It effectively reduced the ablation rate of the composites and maintained a high heat resistance capacity.
Article
Materials Science, Multidisciplinary
Zhichao Shang, Xiaoping Cai, Farshid Pahlevani, Yan Zheng, Akbar Hojjati-Najafabadi, Xinran Gao, Baojing Zhang, Peizhong Feng
Summary: High porosity Co-Al-Fe intermetallics with 3D-microstructures were successfully synthesized in one step via a thermal explosion reaction. The link between pore structure and permeability was investigated using 3D-XRM technology. The corrosion resistance of the samples with different Fe contents was studied at 900 degrees C under an oxygen/sulphur atmosphere for up to 120 h. The results showed that the samples maintained stable pore structure and intact internal matrices, attributed to the formation of a thin protective layer on the surface. In addition, inward diffusion of S resulted in the formation of FeS nodules.
Article
Materials Science, Multidisciplinary
Lian Ma, Hain Yang, Daquan Zhang, Wei Wu
Summary: In this study, an environmentally friendly volatile corrosion inhibitor, lysine salts (LA), was prepared between graphene oxide (GO) layers using an in situ intercalation technique. The corrosion inhibition effect of LA was evaluated, and it was found that LA-GO2 achieved a 99.3% corrosion inhibition efficiency after composition optimization. The inhibition of the electrochemical anodic process on the surface of mild steel was the main reason for the high corrosion inhibition efficiency of LA-GO2. The properties of the surface film on the corroded steel were also characterized in detail to understand the corrosion inhibition mechanism of LA-GO2.
Article
Materials Science, Multidisciplinary
Running Wang, Jiaping Zhang, Bing Liu, Jie Fei, Qiangang Fu
Summary: By introducing a tailored SiC-C interphase, the carbon fiber can be effectively protected, improving the mechanical and ablation properties of leading edge shaped C/C-ZrC-SiC composites.
Article
Materials Science, Multidisciplinary
Zihua Wang, Chijia Wang, Ruitao Wang, Jiapeng Deng, Kun Zhang, Yanji Zhu, Huaiyuan Wang
Summary: A robust anti-corrosive coating has been developed using functional fly ash, which demonstrates excellent corrosion resistance and improved mechanical properties. The coating achieves these enhancements through molecular cross-linking design and surface augmentation techniques, resulting in a significantly improved impedance modulus compared to pure polyurea coatings.
Article
Materials Science, Multidisciplinary
Haofei Sun, Meifeng Li, Hao Zhang, Jing Liu
Summary: The oxidation behavior of FeCrNi medium entropy alloy was investigated through experimental observations and density functional theory (DFT) calculations. The study found that at 900 degrees C, the alloy forms a desirable and continuous oxide layer, while at 1000 degrees C, the oxide layer becomes discontinuous with penetration of oxide. These observations highlight the significant role of phase structure in promoting the formation of protective oxide scales and influencing oxidation resistance.
Article
Materials Science, Multidisciplinary
Yang Li, Ke Ma, Jingjun Xu, Jingjing Li, Yueming Li, Yi Zhang, Jun Zuo, Meishuan Li
Summary: Cr2AlC diffusion barrier effectively blocks the diffusion of Ti, enhancing the stability and spalling resistance of the Al2O3 scales between NiCrAlY coating and TiAl alloy.
Article
Materials Science, Multidisciplinary
Weiyi Wang, Qinglin Pan, Xiangdong Wang, Bing Liu
Summary: By adding Ce, Sc, Y and Zr elements to Al-Mg-Si alloy, the microstructure of the alloy can be regulated, and the corrosion and heat resistance of the materials can be improved.
Article
Materials Science, Multidisciplinary
Andrea Cristoforetti, Javier Izquierdo, Ricardo M. Souto, Flavio Deflorian, Michele Fedel, Stefano Rossi
Summary: This study presents a new approach to studying the mechanism of filiform corrosion in organic coated steel using the scanning vibrating electrode technique (SVET) and micropotentiometry (potentiometric SECM). The electrochemical activity under the coating was evaluated by mapping the ionic current densities coming from artificial defects made in specific locations of the filament. Antimony tips were also used to investigate the pH changes associated with different corrosion reactions at the metal-paint interface. Local pH levels along the filament in the anodic and cathodic regions were determined.
Article
Materials Science, Multidisciplinary
Yang Gao, Dayun Sun, Zhu Liu, Shuo Cong, Rui Tang, Yanping Huang, Lefu Zhang, Xianglong Guo
Summary: The corrosion characteristics of a novel alumina-forming austenitic steel in high-pressure high-temperature water environment were studied. The addition of aluminum has a negative effect on the continuity of the alumina scale.
Article
Materials Science, Multidisciplinary
Negin Madelat, Benny Wouters, Peter Visser, Zahra Jiryaeisharahi, Kristof Marcoen, Shoshan T. Abrahami, Annick Hubin, Herman Terryn, Tom Hauffman
Summary: This work explores the correlation between electrolyte transport properties and the variation of pigment volume concentration (PVC) in organic coatings. An odd random phase electrochemical impedance spectroscopy (ORP-EIS) approach is used to analyze the diffusion of ions independent from water uptake. The results show that a higher PVC leads to a more homogeneous coating structure, resulting in faster diffusion of ions and enhanced water uptake.
Article
Materials Science, Multidisciplinary
Eloa Lopes Maia, Serguei Gavrilov, Valentyn Tsisar, Kitty Baert, Iris De Graeve
Summary: The effect of pre-oxidation in air at 300-500°C on the initiation and development of liquid metal corrosion attack on 316L austenitic steel in static lead-bismuth eutectic (LBE) has been investigated. It was found that pre-formed oxide films can protect the surface against dissolution, while high temperature pre-oxidation leads to localized corrosion.
Article
Materials Science, Multidisciplinary
Baozhuang Sun, Qiuyu Wang, Yue Pan, Zhiyong Liu, Cuiwei Du, Xiaogang Li
Summary: In this study, a non-steady electrochemical model was established to investigate stress corrosion cracking (SCC). The model was verified using 304 SS with various microstructures, confirming its effectiveness in assessing SCC susceptibility.
Article
Materials Science, Multidisciplinary
Xingyu Xiao, Xinhua Liu, Zhilei Wang, Xuexu Xu, Mingying Chen, Jianxin Xie
Summary: The corrosion behavior and mechanisms of Cu-10Ni-X (Al, Fe, Mn, Cr, Sn, Ti, Zn) alloys in a 3.5% NaCl solution were systematically investigated. Both computational and experimental results revealed that except Ti, other elements could enhance the corrosion resistance of Cu2O passivation film.
Article
Materials Science, Multidisciplinary
Gen Zhang, Yan-Ping Huang, E. Jiang, Wei -Wei Liu, Hong Yang, Jing Xiong, Yong-Fu Zhao
Summary: The addition of aluminum has a significant influence on the intermetallic compounds in AFA alloys, particularly increasing the content of B2-NiAl phase. In the SCO2 environment, the oxide scales formed on AFA alloys with aluminum were thinner than on ASS without aluminum, and the structure of the oxide scales changed to a double-layer structure.
Article
Materials Science, Multidisciplinary
Yuxuan He, Guozheng Xiao, Chao Wang, Xuefeng Lu, Liuyuan Li, Shiying Liu, Yusheng Wu, Zhanjie Wang
Summary: The relationship between configurational entropy and lattice distortion in novel rare earth monosilicates was investigated, and the effect of configurational entropy on their properties was studied. The results showed that lattice distortion increased with the increase of configurational entropy, but a highly symmetrical crystal structure was formed when the configurational entropy was large enough, inhibiting the lattice distortion.
